Can someone pls help us with this question I need the answer too

**Answer:**

Newton

**Explanation:**

The SI unit of force is the newton, symbol N. The base units relevant to force are: The metre, unit of length — symbol m. The kilogram, unit of mass — symbol kg.

**Answer:**

I would like aliens if they exist

**Explanation:**

**Answer:**

**Explanation:**

Given

altitude of the Plane

When Airplane is away

Distance is changing at the rate of

From diagram we can write as

differentiate above equation w.r.t time

as altitude is not changing therefore

at

substitute the value we get

Say we have a cylinder
that has a height of dx, we see that the cylinder has a volume of: <span>

<span>Vcylinder = πr^2*h = π(5)^2(dx) = 25π dx

Then, the weight of oil in this cylinder is:

Fcylinder = 50 * Vcylinder = (50)(25π dx) = 1250π dx.

Then, since the oil x feet from the top of the tank needs to
travel x feet to get the top, we have:

Wcylinder = Force x Distance = (1250π dx)(x) = 1250π x dx.

<span>Integrating from x1 to x2 ft gives the total work to be: (x1
= distance from top liquid level to ground level; x2 = distance from bottom
liquid level to ground level)</span>

<span>W = ∫ 1250π x dx

<span>W = 1250π ∫ x dx

W = 625π * (x2 – x1)</span></span></span></span>

<span>x2 = 14 ft + 15 ft = 29 ft</span>

x1 = 14 ft + 1 ft = 15
ft

<span>

W = 625π * (29^2 - 15^2)

<span>**W = 385,000π ft-lbs
= 1,209,513.17 ft-lbs**</span></span>